Medicine: To Sleep, To Dream. . .

Every night the human
guinea pigs, after eating "test food," went to bed with a battery of
scientific apparatus hitched up to their toes, a microphone strapped to
their stomachs. They did not have very comfortable nights. Ohio State
Physiologist Hugh Boyd McGlade woke them periodically to ask if they
were dreaming. He discovered that dreams were heralded by a "rapid
rumbling" below the stomach, a twitching of the right foot. Good food
to induce dreams, he found, was bananas. When his guinea pigs ate ice...